I don't know exactly how to explain this one except to call it light painting. It is a screen that you stand in front of and lights are projected on it. When you move the effect is amazing. In this image a family of four was having fun playing with the light effects. This is an exhibit at the Replay's Believe It Or Not in Baltimore Maryland. It was just amazing to see all the different effects it created. This is just one of many. Please excuse my absents we have been busy with Summer vacation.